Temperature and Salinity Workup

Initial conclusions/questions:

1) Gotta throw out most, if not all EELD1 salinity data. I think these instruments ended up in the mud. Keep the StarOddi temp data from this station.

2) RBR seems more accurate than Star Oddi* (e.g fewer big dips in salinity/conductivity), but still has a scatter of questionable conductivity data. There’s no “cup” to be fouled by sediment, so what is happening?

3) Some of the “non-anomoulus” data I would still throw out. After talking to Tim, this data should be left in but “flagged” in a new column.

Compare instrument types (color points) to YSI data (black points)

EWLD1 and KALD1 could use calibration

Difference in readings between instruments

Diffs b/n instruments: TEMP and SAL
Station mSOvRBR_Temp mTCMvRBR_Temp mSOvRBR_Sal
EELD1 0.0273978 0.1028821 7.1917092
EELD2 NaN NaN NaN
EWLD1 NaN NaN NaN
EWLD2 -0.0498599 0.0205760 -6.7605868
JALD1 NaN NaN NaN
JALD2 -0.0337953 -0.0147414 -0.8162601
KALD1 NaN NaN NaN
KALD2 -0.0292570 0.0584142 -4.1743281

Diff in YSI and instruments: TEMPERATURE
Station DT Temp_YSI Temp_SO Temp_RBR Temp_TCM
KALD1 2019-04-28 12:00:00 -1.8 -1.74 NA -1.7069
KALD1 2019-08-08 10:00:00 9.1 9.10 NA 9.7457
JALD2 2019-04-27 13:00:00 -1.7 -1.50 -1.4511464 -1.4039
JALD2 2019-06-21 11:00:00 0.9 -0.08 -0.0574337 -0.1048
JALD2 2019-08-09 11:00:00 5.9 6.01 7.5277501 6.4134
EELD2 2019-07-31 18:00:00 7.7 8.00 NA 8.0202
EELD1 2019-04-16 12:00:00 -1.8 -1.76 -1.6958582 -1.8956
EELD1 2019-07-31 20:00:00 9.1 7.37 6.8960178 7.8434
KALD2 2019-04-25 22:00:00 -1.6 -1.88 -1.8313716 -1.5500
KALD2 2019-06-21 15:00:00 -0.1 -0.05 -0.2430046 0.0767
KALD2 2019-08-08 00:00:00 9.1 9.39 9.2768836 NA
JALD1 2019-08-09 10:00:00 7.5 7.41 NA 7.4373
EWLD2 2018-08-11 17:00:00 5.4 5.47 NA 5.4700
EWLD2 2019-04-15 13:00:00 -1.8 -1.76 -1.7381441 -1.7501
EWLD2 2019-08-05 15:00:00 9.6 9.54 9.7726169 9.7214
EWLD1 2018-08-11 18:00:00 6.8 5.96 NA 5.9905
EWLD1 2019-04-13 19:00:00 -2.0 -1.81 NA -1.8506
EWLD1 2019-06-23 18:00:00 -0.3 -0.69 NA NA
EWLD1 2019-06-24 15:00:00 -0.2 -0.44 NA NA
EWLD1 2019-08-05 16:00:00 9.9 10.01 NA NA
Diff in YSI and instruments: SALINITY
Station DT Sal_YSI Sal_SO Sal_RBR
KALD1 2019-04-28 12:00:00 39.33 36.17 NA
KALD1 2019-08-08 10:00:00 25.93 23.54 NA
JALD2 2019-04-27 13:00:00 38.81 42.18 42.634513
JALD2 2019-06-21 11:00:00 33.35 38.12 39.908007
JALD2 2019-08-09 11:00:00 29.87 23.38 26.290954
EELD2 2019-07-31 18:00:00 25.89 25.85 NA
EELD1 2019-04-16 12:00:00 35.34 18.48 9.174136
EELD1 2019-07-31 20:00:00 24.55 14.94 9.449980
KALD2 2019-04-25 22:00:00 39.70 36.25 39.090341
KALD2 2019-06-21 15:00:00 39.03 35.93 38.840524
KALD2 2019-08-08 00:00:00 25.98 23.68 21.540167
JALD1 2019-08-09 10:00:00 25.32 24.31 NA
EWLD2 2018-08-11 17:00:00 29.39 26.72 NA
EWLD2 2019-04-15 13:00:00 35.33 25.35 31.878105
EWLD2 2019-08-05 15:00:00 29.70 17.49 28.676686
EWLD1 2018-08-11 18:00:00 27.31 22.13 NA
EWLD1 2019-04-13 19:00:00 34.60 32.85 NA
EWLD1 2019-06-23 18:00:00 10.54 31.98 NA
EWLD1 2019-06-24 15:00:00 6.67 31.97 NA
EWLD1 2019-08-05 16:00:00 30.31 24.67 NA

calibrate EWLD1 and KALD1 using YSI data

T vs S

What to remove (“anom” data is below TS line givin instrument precision)

## [1] "SO error: T=0.1, Cond=1.5 mS/cm, RBR error: T=0.002, Cond=0.01 mS/cm"

#Choose datasets ##color=StarOddi, black=RBR ##use KALD1 calibrated for Temp and Cond, EWLD1 calibrated for Cond

Next step = Flagging data

Values below freezing line (with error) are flagged “INV” for Invalid

Values that are outliers, or appear to be instrument malfunction (as determined by a trained human) are flagged “QM” for Questionable Measurement